Square has finally been able to move staff over from PS3 version to Xbox 360.

Final Fantasy XIII screenshot

Square Enix showed the first in-game footage of Final Fantasy XIII running on Xbox 360 at E3 earlier this month. Amazingly it has been revealed that work on the Xbox 360 version only began a few months before the show.

Up to the trial demo version that was released [in April] in Japan, [FFXIII] was PS3-only in terms of development," Final Fantasy series producer Yoshinori Kitase told Giant Bomb. "The Xbox 360 version is definitely following after the PS3 version, but [we] were finally able to come to a point in the PS3 development where some of the staff could take their hands off and start programming the 360 version."

Final Fantasy XIII is currently expected for release in the US and Europe on Xbox 360 and PS3 in spring 2010.